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  • Title: Acute venous thromboembolic disease and paradoxical embolism.
    Author: Pérez R D, Maldonado J D, Andresen H M.
    Journal: Acta Clin Belg; 2015 Apr; 70(2):145-8. PubMed ID: 25413471.
    Abstract:
    BACKGROUND: We report two cases of paradoxical cerebral embolism associated with acute venous thromboembolic disease. CASE REPORT: The first case corresponds to a 49-year-old woman with sudden onset of dyspnea and syncope, followed by right upper extremity paresis, aphasia and dysarthria. The admission brain computed tomography (CT) was unremarkable, but lung CT showed multilobar and multisegmentary pulmonary embolism. Echocardiography showed dilated right ventricle with impaired systolic function, moderate tricuspid regurgitation, moderate pulmonary hypertension and positive bubble test, suggestive of a patent foramen ovale (PFO) which was successfully closed by endovascular Amplatzer device placement. The patient was discharged with anticoagulation therapy and permanent antiplatelet aggregation therapy. The second case is a 60-year-old woman found unconscious. Neurological examination revealed expressive aphasia, right hemianopsia, right central facial paralysis and right-sided paresis with a National institute of Health Stroke Scale of 19. Brain CT showed signs of acute left middle cerebral artery infarction. Later, she developed greater impairment of consciousness. A new brain CT showed significant edema with mass effect requiring a decompressive craniotomy. Echocardiography showed PFO and lower extremities' Doppler ultrasound showed a left infrapopliteal posterior tibial right deep venous thrombosis. An inferior vena cava filter was placed and two days after surgery, anticoagulation was started.
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